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From 6ae2cc94566550e2e27c791485319bd5791cc861 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Tue, 9 Aug 2011 13:46:53 -0400
Subject: [PATCH] Add tcc.efi to test our calling convention shananagans.
Add a test case to actually make sure we've got stack alignment and
calling conventions set up correctly.
---
apps/Makefile | 3 +-
apps/tcc.c | 442 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 444 insertions(+), 1 deletions(-)
create mode 100644 apps/tcc.c
diff --git a/apps/Makefile b/apps/Makefile
index 6b50e4f..71e738d 100644
--- a/apps/Makefile
+++ b/apps/Makefile
@@ -32,13 +32,14 @@ TOPDIR = $(SRCDIR)/..
CDIR=$(TOPDIR)/..
LINUX_HEADERS = /usr/src/sys/build
CPPFLAGS += -D__KERNEL__ -I$(LINUX_HEADERS)/include
+#CFLAGS += -ggdb
CRTOBJS = ../gnuefi/crt0-efi-$(ARCH).o
LDSCRIPT = $(TOPDIR)/gnuefi/elf_$(ARCH)_efi.lds
LDFLAGS += -T $(LDSCRIPT) -shared -Bsymbolic -L../lib -L../gnuefi $(CRTOBJS)
LOADLIBES = -lefi -lgnuefi $(shell $(CC) $(ARCH3264) -print-libgcc-file-name)
FORMAT = efi-app-$(ARCH)
-TARGETS = t.efi t2.efi t3.efi t4.efi t5.efi t6.efi printenv.efi t7.efi route80h.efi modelist.efi
+TARGETS = t.efi t2.efi t3.efi t4.efi t5.efi t6.efi printenv.efi t7.efi route80h.efi modelist.efi tcc.efi
all: $(TARGETS)
diff --git a/apps/tcc.c b/apps/tcc.c
new file mode 100644
index 0000000..546df92
--- /dev/null
+++ b/apps/tcc.c
@@ -0,0 +1,442 @@
+/*
+ * Test if our calling convention gymnastics actually work
+ */
+
+#include <efi.h>
+#include <efilib.h>
+
+#ifdef __x86_64__
+#include <x86_64/pe.h>
+#include <x86_64/efibind.h>
+#endif
+
+#if 0
+ asm volatile("out %0,%1" : : "a" ((uint8_t)a), "dN" (0x80));
+
+extern void dump_stack(void);
+asm( ".globl dump_stack\n"
+ "dump_stack:\n"
+ " movq %rsp, %rdi\n"
+ " jmp *dump_stack_helper@GOTPCREL(%rip)\n"
+ ".size dump_stack, .-dump_stack");
+
+void dump_stack_helper(unsigned long rsp_val)
+{
+ uint64_t *rsp = (unsigned long *)rsp_val;
+ int x;
+
+ Print(L"%%rsp: 0x%08x%08x stack:\r\n",
+ (rsp_val & 0xffffffff00000000) >>32,
+ rsp_val & 0xffffffff);
+ for (x = 0; x < 8; x++) {
+ Print(L"%08x: ", ((uint64_t)rsp) & 0xffffffff);
+ Print(L"%016x ", *rsp++);
+ Print(L"%016x ", *rsp++);
+ Print(L"%016x ", *rsp++);
+ Print(L"%016x\r\n", *rsp++);
+ }
+}
+#endif
+
+EFI_STATUS EFI_FUNCTION test_failure_callback(void)
+{
+ return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS test_failure(void)
+{
+ return uefi_call_wrapper(test_failure_callback, 0);
+}
+
+EFI_STATUS EFI_FUNCTION test_call0_callback(void)
+{
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call0(void)
+{
+ return uefi_call_wrapper(test_call0_callback, 0);
+}
+
+EFI_STATUS EFI_FUNCTION test_call1_callback(UINT32 a)
+{
+ if (a != 0x12345678) {
+ return EFI_LOAD_ERROR;
+ }
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call1(void)
+{
+ return uefi_call_wrapper(test_call1_callback, 1,0x12345678);
+}
+
+EFI_STATUS EFI_FUNCTION test_call2_callback(UINT32 a, UINT32 b)
+{
+ if (a != 0x12345678) {
+ return EFI_LOAD_ERROR;
+ }
+ if (b != 0x23456789) {
+ return EFI_INVALID_PARAMETER;
+ }
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call2(void)
+{
+ return uefi_call_wrapper(test_call2_callback, 2,
+ 0x12345678, 0x23456789);
+}
+
+EFI_STATUS EFI_FUNCTION test_call3_callback(UINT32 a, UINT32 b,
+ UINT32 c)
+{
+ if (a != 0x12345678)
+ return EFI_LOAD_ERROR;
+ if (b != 0x23456789)
+ return EFI_INVALID_PARAMETER;
+ if (c != 0x3456789a)
+ return EFI_UNSUPPORTED;
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call3(void)
+{
+ return uefi_call_wrapper(test_call3_callback, 3,
+ 0x12345678, 0x23456789, 0x3456789a);
+}
+
+EFI_STATUS EFI_FUNCTION test_call4_callback(UINT32 a, UINT32 b,
+ UINT32 c, UINT32 d)
+{
+ if (a != 0x12345678)
+ return EFI_LOAD_ERROR;
+ if (b != 0x23456789)
+ return EFI_INVALID_PARAMETER;
+ if (c != 0x3456789a)
+ return EFI_UNSUPPORTED;
+ if (d != 0x456789ab)
+ return EFI_BAD_BUFFER_SIZE;
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call4(void)
+{
+ return uefi_call_wrapper(test_call4_callback, 4,
+ 0x12345678, 0x23456789, 0x3456789a, 0x456789ab);
+}
+
+EFI_STATUS EFI_FUNCTION test_call5_callback(UINT32 a, UINT32 b,
+ UINT32 c, UINT32 d, UINT32 e)
+{
+ if (a != 0x12345678)
+ return EFI_LOAD_ERROR;
+ if (b != 0x23456789)
+ return EFI_INVALID_PARAMETER;
+ if (c != 0x3456789a)
+ return EFI_UNSUPPORTED;
+ if (d != 0x456789ab)
+ return EFI_BAD_BUFFER_SIZE;
+ if (e != 0x56789abc)
+ return EFI_BUFFER_TOO_SMALL;
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call5(void)
+{
+ return uefi_call_wrapper(test_call5_callback, 5,
+ 0x12345678, 0x23456789, 0x3456789a, 0x456789ab, 0x56789abc);
+}
+
+EFI_STATUS EFI_FUNCTION test_call6_callback(UINT32 a, UINT32 b,
+ UINT32 c, UINT32 d, UINT32 e, UINT32 f)
+{
+ if (a != 0x12345678)
+ return EFI_LOAD_ERROR;
+ if (b != 0x23456789)
+ return EFI_INVALID_PARAMETER;
+ if (c != 0x3456789a)
+ return EFI_UNSUPPORTED;
+ if (d != 0x456789ab)
+ return EFI_BAD_BUFFER_SIZE;
+ if (e != 0x56789abc)
+ return EFI_BUFFER_TOO_SMALL;
+ if (f != 0x6789abcd)
+ return EFI_NOT_READY;
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call6(void)
+{
+ return uefi_call_wrapper(test_call6_callback, 6,
+ 0x12345678, 0x23456789, 0x3456789a, 0x456789ab, 0x56789abc,
+ 0x6789abcd);
+}
+
+EFI_STATUS EFI_FUNCTION test_call7_callback(UINT32 a, UINT32 b,
+ UINT32 c, UINT32 d, UINT32 e, UINT32 f, UINT32 g)
+{
+ if (a != 0x12345678)
+ return EFI_LOAD_ERROR;
+ if (b != 0x23456789)
+ return EFI_INVALID_PARAMETER;
+ if (c != 0x3456789a)
+ return EFI_UNSUPPORTED;
+ if (d != 0x456789ab)
+ return EFI_BAD_BUFFER_SIZE;
+ if (e != 0x56789abc)
+ return EFI_BUFFER_TOO_SMALL;
+ if (f != 0x6789abcd)
+ return EFI_NOT_READY;
+ if (g != 0x789abcde)
+ return EFI_DEVICE_ERROR;
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call7(void)
+{
+ return uefi_call_wrapper(test_call7_callback, 7,
+ 0x12345678, 0x23456789, 0x3456789a, 0x456789ab,
+ 0x56789abc, 0x6789abcd, 0x789abcde);
+}
+
+EFI_STATUS EFI_FUNCTION test_call8_callback(UINT32 a, UINT32 b,
+ UINT32 c, UINT32 d, UINT32 e, UINT32 f, UINT32 g, UINT32 h)
+{
+ if (a != 0x12345678)
+ return EFI_LOAD_ERROR;
+ if (b != 0x23456789)
+ return EFI_INVALID_PARAMETER;
+ if (c != 0x3456789a)
+ return EFI_UNSUPPORTED;
+ if (d != 0x456789ab)
+ return EFI_BAD_BUFFER_SIZE;
+ if (e != 0x56789abc)
+ return EFI_BUFFER_TOO_SMALL;
+ if (f != 0x6789abcd)
+ return EFI_NOT_READY;
+ if (g != 0x789abcde)
+ return EFI_DEVICE_ERROR;
+ if (h != 0x89abcdef)
+ return EFI_WRITE_PROTECTED;
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call8(void)
+{
+ return uefi_call_wrapper(test_call8_callback, 8,
+ 0x12345678,
+ 0x23456789,
+ 0x3456789a,
+ 0x456789ab,
+ 0x56789abc,
+ 0x6789abcd,
+ 0x789abcde,
+ 0x89abcdef);
+}
+
+EFI_STATUS EFI_FUNCTION test_call9_callback(UINT32 a, UINT32 b,
+ UINT32 c, UINT32 d, UINT32 e, UINT32 f, UINT32 g, UINT32 h, UINT32 i)
+{
+ if (a != 0x12345678)
+ return EFI_LOAD_ERROR;
+ if (b != 0x23456789)
+ return EFI_INVALID_PARAMETER;
+ if (c != 0x3456789a)
+ return EFI_UNSUPPORTED;
+ if (d != 0x456789ab)
+ return EFI_BAD_BUFFER_SIZE;
+ if (e != 0x56789abc)
+ return EFI_BUFFER_TOO_SMALL;
+ if (f != 0x6789abcd)
+ return EFI_NOT_READY;
+ if (g != 0x789abcde)
+ return EFI_DEVICE_ERROR;
+ if (h != 0x89abcdef)
+ return EFI_WRITE_PROTECTED;
+ if (i != 0x9abcdef0)
+ return EFI_OUT_OF_RESOURCES;
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call9(void)
+{
+ return uefi_call_wrapper(test_call9_callback, 9,
+ 0x12345678,
+ 0x23456789,
+ 0x3456789a,
+ 0x456789ab,
+ 0x56789abc,
+ 0x6789abcd,
+ 0x789abcde,
+ 0x89abcdef,
+ 0x9abcdef0);
+}
+
+extern EFI_STATUS test_call10(void);
+EFI_STATUS EFI_FUNCTION test_call10_callback(UINT32 a, UINT32 b,
+ UINT32 c, UINT32 d, UINT32 e, UINT32 f, UINT32 g, UINT32 h, UINT32 i,
+ UINT32 j)
+{
+ if (a != 0x12345678)
+ return EFI_LOAD_ERROR;
+ if (b != 0x23456789)
+ return EFI_INVALID_PARAMETER;
+ if (c != 0x3456789a)
+ return EFI_UNSUPPORTED;
+ if (d != 0x456789ab)
+ return EFI_BAD_BUFFER_SIZE;
+ if (e != 0x56789abc)
+ return EFI_BUFFER_TOO_SMALL;
+ if (f != 0x6789abcd)
+ return EFI_NOT_READY;
+ if (g != 0x789abcde)
+ return EFI_DEVICE_ERROR;
+ if (h != 0x89abcdef)
+ return EFI_WRITE_PROTECTED;
+ if (i != 0x9abcdef0)
+ return EFI_OUT_OF_RESOURCES;
+ if (j != 0xabcdef01)
+ return EFI_VOLUME_CORRUPTED;
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS test_call10(void)
+{
+ return uefi_call_wrapper(test_call10_callback, 10,
+ 0x12345678,
+ 0x23456789,
+ 0x3456789a,
+ 0x456789ab,
+ 0x56789abc,
+ 0x6789abcd,
+ 0x789abcde,
+ 0x89abcdef,
+ 0x9abcdef0,
+ 0xabcdef01);
+}
+
+EFI_STATUS
+efi_main (EFI_HANDLE *image, EFI_SYSTEM_TABLE *systab)
+{
+ EFI_STATUS rc = EFI_SUCCESS;
+
+ InitializeLib(image, systab);
+ PoolAllocationType = 2; /* klooj */
+
+#ifndef __x86_64__
+ uefi_call_wrapper(systab->ConOut->OutputString, 2, systab->ConOut,
+ L"This test is only valid on x86_64\n");
+ return EFI_UNSUPPORTED;
+#endif
+
+ asm volatile("out %0,%1" : : "a" ((uint8_t)0x14), "dN" (0x80));
+
+ Print(L"Hello\r\n");
+ rc = test_failure();
+ if (EFI_ERROR(rc)) {
+ Print(L"Returning Failure works\n");
+ } else {
+ Print(L"Returning failure doesn't work.\r\n");
+ Print(L"%%rax was 0x%016x, should have been 0x%016x\n",
+ rc, EFI_UNSUPPORTED);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ rc = test_call0();
+ if (!EFI_ERROR(rc)) {
+ Print(L"0 args works just fine here.\r\n");
+ } else {
+ Print(L"0 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call1();
+ if (!EFI_ERROR(rc)) {
+ Print(L"1 arg works just fine here.\r\n");
+ } else {
+ Print(L"1 arg failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call2();
+ if (!EFI_ERROR(rc)) {
+ Print(L"2 args works just fine here.\r\n");
+ } else {
+ Print(L"2 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call3();
+ if (!EFI_ERROR(rc)) {
+ Print(L"3 args works just fine here.\r\n");
+ } else {
+ Print(L"3 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call4();
+ if (!EFI_ERROR(rc)) {
+ Print(L"4 args works just fine here.\r\n");
+ } else {
+ Print(L"4 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call5();
+ if (!EFI_ERROR(rc)) {
+ Print(L"5 args works just fine here.\r\n");
+ } else {
+ Print(L"5 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call6();
+ if (!EFI_ERROR(rc)) {
+ Print(L"6 args works just fine here.\r\n");
+ } else {
+ Print(L"6 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call7();
+ if (!EFI_ERROR(rc)) {
+ Print(L"7 args works just fine here.\r\n");
+ } else {
+ Print(L"7 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call8();
+ if (!EFI_ERROR(rc)) {
+ Print(L"8 args works just fine here.\r\n");
+ } else {
+ Print(L"8 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call9();
+ if (!EFI_ERROR(rc)) {
+ Print(L"9 args works just fine here.\r\n");
+ } else {
+ Print(L"9 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ rc = test_call10();
+ if (!EFI_ERROR(rc)) {
+ Print(L"10 args works just fine here.\r\n");
+ } else {
+ Print(L"10 args failed: 0x%016x\n", rc);
+ return rc;
+ }
+
+ return rc;
+}
--
1.7.6
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